Need to know.
Some argue that the Ten Commandments belonged to the Old Testament and were replaced by the command to love.

But there is a serious problem with that argument:

The commands to love are Old Testament commands too.

“You shall love the LORD your God with all your heart...” comes from Deuteronomy 6:5.

“You shall love your neighbor as yourself” comes from Leviticus 19:18.

When Jesus identified these as the two great commandments, He was not introducing a new law that replaced the Ten Commandments. He was quoting commandments already written in the Old Testament. — Matthew 22:37–40

And the New Testament continues both.

Paul says, “Love is the fulfillment of the law,” and immediately explains what he means by quoting the commandments against adultery, murder, stealing, coveting, and “any other commandment.” — Romans 13:8–10

Love does not abolish God’s law. Love is the principle by which His law is fulfilled.

So simply calling something “Old Testament” proves nothing about whether it still applies. The commands to love were there. The Ten Commandments were there.

Both continue.

“Old Testament” does not mean “abolished.”